| 1 | AHRI / EUROVENT CERTIFIED AIR COOLED SCREW REVERSIBLE HEAT PUMP
Supply, installation , testing & commissioning of BMS compatible Micro Processor Controlled Reversible Air-cooled Twin/ mono rotor Screw Heat Pump delivering actual capacity as per the following parameters duly installed at site. The Heat Pump should be complete with multiple semi-hermetic screw compressors (min 2) with independent circuit, Electronic Expansion Valve, Air Cooled Condenser coil with Copper tube, aluminum fins having anticorrosive coating from factory (salt Spray of 10,000 hours as per ASTM B117) & condenser fans as per OEM on the condenser , Shell and Tube with anti freeze heater, anitvibration spring isolators, Electrical panel with disconnect switch mounted on the heat pump including the disconnect switch suitable for 50 Hz, 3 phase 415 volts,ac supply. Refrigerant circuit to include liquid line drier filter with replaceable solid cartridge, liquid line sight glass, EEV, 4- way reversing valve, high pressure safety valve, high & lower pressure transducers, high and low pressure switches, etc. The heat pump shall be suitable for operation on environment friendly refrigerant R134a and shall come factory charged with refrigerant.The heat pump shall have fully automatic defrost cycle.
Each refrigerant circuit shall be fitted with:
- Electronic Expansion Valve
- High and Low Pressure Transducers
- High Pressure Switches
- High and Low Pressure Safety Valve
- liquid line shut off device
- NRV in compressors discharge line
- compressor discharge valve
- liquid line shut off valve
- crankcase heater on each compressor
- liquid receivers
- liquid separators
- differential pressure switch, water side
- antifreeze electric heater for heat exchangers
The price quoted for unit shall be in equivalent INR only, CIF Port Basis, inclusive of transit insurance, transportation upto Port etc.
Installation, testing & commissioning of m/c including, loading & unloading, lifting & shifting etc .FOR HOT WATER DURING WINTER (HEATING MODE):-Actual Heating Capacity at below parameters:- 750KW.Medium - Glycol (Water with 10% Conc. Ethylene Glycol to avoid freezing in standby Heat pumps).Design Ambient Temperature in winter: -10 C.Hot water OUT: 50 C .Hot water IN: 45 C (Design Condition) .Fouling factor-water side (FPS): 0.0005
Pressure Drop across Heat Exchanger: 5m max.. FOR COLD WATER DURING SUMMER (COOLING):-Min. Cooling capacity at below parameters:- 300TR .Design Ambient Temperature in Summer: 35 C.Cold water IN: 13.3 C
Cold water OUT: 6.67 C .Fouling factor-water side (FPS): 0.0005. Heat Pump shall be able to run upto 46 C (with deration).Pressure Drop across Heat Exchanger: 5m max.
Cooling COP (including fans) at AHRI condition shall not less than 2.8. Witness Testing at Factory before dispatch of 1 No. Heat Pump - 4 points in Cooling Mode (100%, 75%, 50% and 25% at Constant Ambient Conditions) and 1 point in Heating mode - 100% with ambient of 7 Deg. C
Heat Pump as defined above
| 7.000 | Set |
| 2 | Primary Chilled Water Pump set (Fixed speed)
Supply, installation , testing & commissioning of Horizontal End Suction, Centrifugal, Single stage, Foot mounted volute type radial split casing, top discharge with back pull out design, primary chilled water pumps set complete with, Cast iron casing, Lead free bronze impeller, an internally-flushed mechanical seals and close coupled with stainless steel stub shaft arrangement with electric motor for re-circulation of chilled water circulation.The liquid cavity shall be sealed off at the pump shaft by an internally-flushed mechanical seals ensure maximum seal face lubrication, heat dissipation and debris removal without vulnerable external flush tubing and with carbon seal seat vs Silicon carbide seal ring, suitable for continuous operation at 248 Deg F (120 Deg C). The pump casing shall be fitted with a renewable type case wear ring to maintain close running clearance, minimize leakage and recirculation losses and to minimize abrasive and corrosive wear to the casing. The case wear ring shall be of the radial type, press fitted in to the casing. Casing wear ring shall be lead free bronze or stainless Steel with smooth surface finish for minimum frictional loss. All impellers shall be dynamically balanced according to ISO 1940-1: Grade G6.3 and hydraulically balanced to increase the life of motor bearings and shaft seal by minimizing axial loads. Pump shaft and stub shaft shall be stainless steels. Bearings shall be so designed as to take the necessary radial load as well as the net hydraulic axial thrust. The pump(s) vibration limits shall conform to ISO 5199. Pump should comply to ASHRAE 90.1. The pump motor shall be TEFC squirrel cage induction motor having efficiency class IE3 (as per IEC 60034) with class 'F' insulation, 1500/2900 RPM synchronous speed, operating on 415 V +/- 10%, 3 phase, 50 Hz AC supply. The motor shall be non- overloading type. Pumps will be with performance characteristics as given below. The pump and motor shall be mounted on a common base plate. All external and exposed cast iron parts of pumps should have an epoxy-based coating made in a cathodic electro-deposition (CED) process. Pump set shall be complete with thermal insulation same as chilled water pipes, aluminium cladding at suction and discharge, necessary anti vibration pads, MS base plate, and all other accessories complete as required.Pump material and operating conditions are given here under:
Type : End suction, Back pull-out, Close coupled
Casing : Grey cast iron (EN-GJL-250) CED Coated
Impeller : Lead free cast Bronze (CuSn10)
Flow rate of each pump : 615 USGPM
Head : 12 Mtr
Efficiency (min) : 80%
Pump need to be insulated at site with same material as of pipe insulation and cost of the same shall be included in this item.
Pumps complete in all respect
| 7.000 | Nos |
| 3 | Secondary Chilled/Hot Water Variable speed Pump set
Supply, installation , testing & commissioning of Horizontal End Suction, Centrifugal, Single stage, Foot mounted volute type radial split casing, top discharge with back pull out design, secondary chilled water pumps set complete with, Cast iron casing, Lead free bronze impeller, an internally-flushed mechanical seals and close coupled with stainless steel stub shaft arrangement with electric motor for re-circulation of chilled water circulation. The liquid cavity shall be sealed off at the pump shaft by an internally-flushed mechanical seals ensure maximum seal face lubrication, heat dissipation and debris removal without vulnerable external flush tubing and with carbon seal seat vs Silicon carbide seal ring, suitable for continuous operation at 248 Deg F (120 Deg C). The pump casing shall be fitted with a renewable type case wear ring to maintain close running clearance, minimize leakage and recirculation losses and to minimize abrasive and corrosive wear to the casing. The case wear ring shall be of the radial type, press fitted in to the casing. Casing wear ring shall be lead free bronze or stainless Steel with smooth surface finish for minimum frictional loss. All impellers shall be dynamically balanced according to ISO 1940-1: Grade G6.3 and hydraulically balanced to increase the life of motor bearings and shaft seal by minimizing axial loads. Pump shaft and stub shaft shall be stainless steels. Bearings shall be so designed as to take the necessary radial load as well as the net hydraulic axial thrust. The pump(s) vibration limits shall conform to ISO 5199. Pump should comply to ASHRAE 90.1. The pump motor shall be TEFC squirrel cage induction motor having efficiency class IE3 (as per IEC 60034) with class 'F' insulation, 1500 RPM synchronous speed, operating on 415 V +/- 10%, 3 phase, 50 Hz AC supply. The motor shall be non- overloading type. Pumps will be with performance characteristics as given below. The pump and motor shall be mounted on a common base plate. All external and exposed cast iron parts of pumps should have an epoxy-based coating made in a cathodic electro-deposition (CED) process. Pump set shall be complete with thermal insulation same as chilled water pipes, aluminium cladding at suction and discharge, necessary anti vibration pads, MS base plate, and all other accessories complete as required.Pump material and operating conditions are given here under:
Type : End suction, Back pull-out, Close coupled
Casing : Grey cast iron (EN-GJL-250) CED Coated
Impeller : Lead free cast Bronze (CuSn10)
Flow rate of each pump : 1325 USGPM
Head : 35 Mtr
Efficiency (min) : 80%
Pump need to be insulated at site with same material as of pipe insulation and cost of the same shall be included in this item.
Set of 3Nos. Pumps (2W+1S)
| 1.000 | Set |
| 4 | Variable Speed Pumping System (Secondary chilled water pumps)
Supply, installation, testing and commissioning of VARIABLE SPEED PUMPING SYSTEM consisting of variable speed secondary chilled water pumps as per above with matching VFDs , Dedicated micro processor based pump logic controller UL listed - designed for Variable Primary Chilled water pumping with parallel pumping software duly downloaded, compatible with Modbus communication, 4.3 inch touch display, provision to connect 3 nos of transmitters/ Sensors for controlling pumps, as per followings. Variable Frequency Drive with Hand-off /Auto macro designed for pumping application Parallel Pumping software duly downloaded pump controller Panel suitable for outdoor installation with canopy (IP 55) panel Transmitters/ Sensors for Variable pumps with suitable thermowells.
| 1.000 | Set |
| 5 | Radiant Chilled/ Hot Water Variable Speed Pumps Set
Supply, installation , testing & commissioning of Horizontal End Suction, Centrifugal, Single stage, Foot mounted volute type radial split casing, top discharge with back pull out design, primary chilled water pumps set complete with, Cast iron casing, Lead free bronze impeller, an internally-flushed mechanical seals and close coupled with stainless steel stub shaft arrangement with electric motor for re-circulation of Condenser water circulation. The liquid cavity shall be sealed off at the pump shaft by an internally-flushed mechanical seals ensure maximum seal face lubrication, heat dissipation and debris removal without vulnerable external flush tubing and with carbon seal seat vs Silicon carbide seal ring, suitable for continuous operation at 248 Deg F (120 Deg C). The pump casing shall be fitted with a renewable type case wear ring to maintain close running clearance, minimize leakage and recirculation losses and to minimize abrasive and corrosive wear to the casing. The case wear ring shall be of the radial type, press fitted in to the casing. Casing wear ring shall be lead free bronze or stainless Steel with smooth surface finish for minimum frictional loss. All impellers shall be dynamically balanced according to ISO 1940-1: Grade G6.3 and hydraulically balanced to increase the life of motor bearings and shaft seal by minimizing axial loads. Pump shaft and stub shaft shall be stainless steels. Bearings shall be so designed as to take the necessary radial load as well as the net hydraulic axial thrust. The pump(s) vibration limits shall conform to ISO 5199. Pump should comply to ASHRAE 90.1. The pump motor shall be TEFC squirrel cage induction motor having efficiency class IE3 (as per IEC 60034) with class 'F' insulation, 1500 RPM synchronous speed, operating on 415 V +/- 10%, 3 phase, 50 Hz AC supply. The motor shall be non- overloading type. Pumps will be with performance characteristics as given below. The pump and motor shall be mounted on a common base plate. All external and exposed cast iron parts of pumps should have an epoxy-based coating made in a cathodic electro-deposition (CED) process. Pump set shall be complete with thermal insulation same as chilled water pipes, aluminium cladding at suction and discharge, necessary anti vibration pads, MS base plate, and all other accessories complete as required.Pump material and operating conditions are given here under:
Heat Pump Side :
Type : End suction, Back pull-out, Close coupled
Casing : Grey cast iron (EN-GJL-250) CED Coated
Impeller : Lead free cast Bronze (CuSn10)
Flow rate of each pump : 1100 USGPM
Head : 15 Mtr
Efficiency (min) : 80%
Pump need to be insulated at site with same material as of pipe insulation and cost of the same shall be included in this item.
Set of 3Nos. Pumps (2W+1S)
| 1.000 | Set |